中国科学院昆明植物研究所机构知识库
Advanced  
KIB OpenIR  > 中国科学院东亚植物多样性与生物地理学重点实验室  > 期刊论文
题名: Photosynthetic performances of Quercus pannosa vary with altitude in the Hengduan Mountains, southwest China
作者: null(张石宝); null(周浙昆); null(胡虹); Xu, K; Yan, N; Li, SY
刊名: FOREST ECOLOGY AND MANAGEMENT
关键词: Quercus pannosa ; leaf trait ; photosynthesis ; low temperature ; distribution
英文摘要: Quercus pannosa Hand.-Mazz. is an evergreen sclerophyllous oak that is an important component of montane forests at altitudes between 2500 and 4300 m in the Hengduan Mountains. To understand photosynthetic adaptability of Q. pannosa to alpine environments, photosynthetic performances and leaf traits were investigated along altitudinal gradients (at altitudes of 3240, 3650 and 4170 m, respectively). Observed trends with increasing altitude were: (1) progressively lower carboxylation efficiency (CE), light-saturated photosynthesis (P-max), daily average photosynthetic rate (P-day), photosynthetic pigments, leaf N content per unit area, optimum photosynthetic temperature (T-opt) and (2) progressively higher leaf mass per unit area (LMA) and ratio of intercellular CO2 concentration (C-i/C-a). However, stomatal conductance (G(s)) and water use efficiency (WUE) remained relatively constant along the altitudinal gradient. Lower photosynthetic rates in Q. pannosa at higher altitudes would be explained by combination of different factors: reducing CE, lower leaf N content and photosynthetic pigments content, higher LMA and C-i/C-a. ln addition, Q. pannosa showed a significant mid-day depression in P., G,, E and WUE due to high water vapor pressure deficits (VPD) and high temperatures. ln general, the T-opt of Q. pannosa was significantly lower than those of Mediterranean oaks. This species could adapt well to low temperature, but high temperature, which indicated that cold-tolerance would be an important determinant of distribution of this oak in the Hengduan Mountains. (c) 2005 Elsevier B.V. All rights reserved.
出版日期: 2005-07-01
卷号: 212, 期号:1-3, 页码:291-301
语种: 英语
收录类别: SCI
学科分类: Forestry
ISSN号: 0378-1127
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/3162
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
201111220049.pdf(235KB)----开放获取--View 联系获取全文

作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Zhang, SB; Zhou, ZK; Hu, H; Xu, K; Yan, N; Li, SY.Photosynthetic performances of Quercus pannosa vary with altitude in the Hengduan Mountains, southwest China,FOREST ECOLOGY AND MANAGEMENT,2005,212(1-3):291-301
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Zhang, SB]'s Articles
[Zhou, ZK]'s Articles
[Hu, H]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Zhang, SB]‘s Articles
[Zhou, ZK]‘s Articles
[Hu, H]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 201111220049.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院昆明植物研究所 - Feedback
Powered by CSpace